Tag Archives: Solar Dynamics Observatory

From AGU: comet ISON’s struggle of Fire and Ice

San Francisco – After a year of observations, scientists waited with bated breath on Nov. 28, 2013, as Comet ISON made its closest approach to the sun, known as perihelion. Would the comet disintegrate in the fierce heat and gravity … Continue reading

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Posted in AGU 2013, Astronomy, Solar, Space | Tagged , , , | 41 Comments

Comet ISON appears to be toast – goes “poof” in video, then comes back to life

Note: See updates below for the ISON ISOFF ISON nature of this comet that has everybody guessing. Picture at right also updated to reflect the new “zombie” status of this comet. Looks like ISON has disintegrated during its turn around … Continue reading

Posted in Astronomy, Space | Tagged , , , , , , , | 324 Comments

Sun produces four X-class flares in two days

Above: note the four separate events in the last two days – from the WUWT Solar Page (From NASA’s Spaceweather.com) When the week began, the sun hadn’t unleashed an X-flare all year long. In only two days, sunspot AR1748 has … Continue reading

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Three years of the Sun in three minutes

Spectacular three year time lapse video from the Solar Dynamics Observatory In the three years since it first provided images of the sun in the spring of 2010, NASA’s Solar Dynamics Observatory (SDO) has had virtually unbroken coverage of the … Continue reading

Posted in Solar | Tagged , , , , | 38 Comments

Our current solar cycle 24 – still in a slump – solar max reached?

Have we hit solar max? NOAA’s SWPC recently updated their solar metrics graphs, and it seems to me like we may have topped out for solar cycle 24. There doesn’t seem to be any evidence of resurgence in any of … Continue reading

Posted in Science, Solar | Tagged , , , | 189 Comments

Solar cycle 24 continues weakly, perhaps weakest of the space-age

NOAA SWPC has updated their plot page of solar metrics, and the slump continues. At spaceweather.com Dr. Tony Phillips writes: SO THIS IS SOLAR MAXIMUM? Forecasters have long expected the Solar Max of 2013 to be the weakest of the … Continue reading

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The sun – still slumping

The latest solar cycle update graphs have been released by the NOAA SWPC today, and the anemic cycle 24 continues: The current count isn’t keeping up with the prediction line in red. Not only is the sunspot count low, so … Continue reading

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Solar corona revealed in super-high-definition

From the Harvard-Smithsonian Center for Astrophysics Today, astronomers are releasing the highest-resolution images ever taken of the Sun’s corona, or million-degree outer atmosphere, in an extreme-ultraviolet wavelength of light. The 16-megapixel images were captured by NASA’s High Resolution Coronal Imager, … Continue reading

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Still waiting for the CME from the X Class flare

Spaceweather.com writes: (link mine) The CME launched toward Earth by the July 12th X-flare has not yet arrived. However, we are still within the forecast window set by analysts at the Goddard Space Weather Lab. The cloud should hit at … Continue reading

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X-Class solar flare blasts CME directly at Earth

Large sunspot Group AR1520, seen below just right of center, was pointed directly at Earth when the flare occurred. The GOES Xray Flux spike hit X 1.4, just barely an X-class: 

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Time lapse video of Venus transit seen from SDO

Thanks to reader Mike McMillan for pointing this awesome HiDef video out. It is the best I’ve seen.

Posted in Astronomy | Tagged , , , | 49 Comments

Transit of Venus today may reveal the “Mysterious Arc of Venus”

From Dr. Tony Phillips Science at NASA When Venus transits the sun on June 5th and 6th, an armada of spacecraft and ground-based telescopes will be on the lookout for something elusive and, until recently, unexpected: The Arc of Venus. … Continue reading

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Whole lotta watts added to the atmosphere

I loved the way James Russell described CO2 molecules as “natural thermostats” Solar Storm Dumps Gigawatts into Earth’s Upper Atmosphere A recent flurry of eruptions on the sun did more than spark pretty auroras around the poles.  NASA-funded researchers say … Continue reading

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Biggest solar storm since 2005

It is being called by WaPo “The Biggest solar storm since 2005“. The sun erupted late on January 22nd, 2012 with an M8.7 class flare. The Solar Dynamics Observatory captured the flare as seen below. From NASA: The coronal mass … Continue reading

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Comet Lovejoy survives a brush with Sol

From Physorg.com Comet Lovejoy was only discovered a couple of weeks ago. It was supposed to melt as it came so close to the sun that the temperatures would hit several million degrees. But astronomers watching live with NASA telescopes … Continue reading

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Solar activity on the upswing, big sunspot rotating into view is producing x-class solar flares. Large CME expected soon, may hit earth.

From Spaceweather.com: New sunspot 1302 has already produced two X-flares(X1.4 on Sept. 22nd and X1.9 on Sept. 24th), can another be far behind? NOAA forecasters put the 24-hour probability at 20%. The sheer size of the active region suggests the … Continue reading

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SDO sees ‘Dark Fireworks’ on the Sun

From Science@ NASA:  On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only “M” (for medium) on the Richter scale of solar flares, the blast at first appeared … Continue reading

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Scientists Prove Existence of ‘Magnetic Ropes’ that Cause Solar Storms

Seems like GMU doesn’t stop, waiting for Dave Clarke and John Mashey to launch the next copygate volley. Here’s some interesting research. FAIRFAX, Va., June 15, 2011—George Mason University scientists discovered recently that a phenomenon called a giant magnetic rope … Continue reading

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Sol is finally waking up

Let’s hope he does get out of the wrong side of the bed. The current sunspot count and 10.7 cm radio flux have increased in the latest NOAA SWPC graphs, shown below. but curiously, the Ap magnetic index remains low. … Continue reading

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SDO getting an eclipse

I noticed this in our sidebar SDO solar image and grabbed it. It has happened before, last year.

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Watch sunspot group 1158 form from nothing

UPDATE: Leif Svalgaard provides us a magnetic movie (SDO HMI) which I’ve also converted and added below. It’s a real treat too. This is truly an impressive animation from the folks at the Solar Dynamics Observatory. I’ve converted it to … Continue reading

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M class solar flare today

Dr. Leif Svalgaard writes in a short email: M6.6 flare kicks F10.7 to 126 sfu Here’s the flare on the X-ray plot:Here’s the xray image: So while the sun has been generally quiet recently, it still has its fits of … Continue reading

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For the first time ever, we can image the sun in 360°

Latest image of the far side of the Sun based on high resolution STEREO data, taken on February 2, 2011 at 23:56 UT when there was still a small gap between the STEREO Ahead and Behind data. This gap will … Continue reading

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Earthly cloud similarities seen in solar CMEs

New SDO images show CMEs exploding from the Sun ripples like clouds do on Earth. It looks a lot like this photo, showing the well known Kelvin-Helmholtz instability. =============================================================== From the University of Warwick: Physicists, led by a researcher at … Continue reading

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New WUWT Solar Images and Data Page

I’ve done some house cleaning and maintenance today to replace the aging SOHO image on the sidebar (which had not been updating since January 11th, thanks to Ric Werme for reminding me) with a new image from the Solar Dynamics … Continue reading

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Longstanding Mystery of Sun’s Hot Outer Atmosphere Solved

From the National Science Foundation: Answer lies in jets of plasma One of the most enduring mysteries in solar physics is why the Sun’s outer atmosphere, or corona, is millions of degrees hotter than its surface. Now scientists believe they … Continue reading

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Solar Geomagnetic Ap Index Hits Zero

This is something you really don’t expect to see this far into solar cycle 24. But there it is, the Solar Dynamics Observatory satellite shows the sun as a cueball: The Ap index being zero, indicates that the sun’s magnetic … Continue reading

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Global Eruption Rocks the Sun

I should point out that thanks to the Solar Dynamics Observatory (SDO), we can see things that we’ve never seen before. So while this event is unprecedented in the history of science, it is likely “business as usual” for old … Continue reading

Posted in Science, Solar, Space, Technology | Tagged , , , , , | 147 Comments

Massive solar filament eruption captured by SDO

The Solar Dynamics Observatory satellite captured this image yesterday. A massive filament on the Sun erupted in a stunning display as seen here in the videos below. The giant solar eruption created a long filament of magnetic plasma, which extended … Continue reading

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SOHO – 15 years today

Dr. Leif Svalgaard advises via email that today is the 15th anniversary of the SOHO(Solar and Heliospheric Observatory). Here’s a story to celebrate one of the most successful space missions ever, still going strong. – Anthony SOHO Celebrates 15 Years … Continue reading

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